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Two soap bubbles are joined together so ...

Two soap bubbles are joined together so that they have a common surface. If their radii are 3 cm and 4 cm respectively, find the radius of the common surface.

A

7cm

B

1cm

C

5cm

D

12cm

Text Solution

Verified by Experts

The correct Answer is:
D
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MOTION-SURFACE TENSION-Exercise - 1 Objective Problems | NEET
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  9. The angle of contact for pure water and clean glass surface is

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  11. For which pair, out of the following is the angle of contact maximum-

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  12. The maximum value of angle of contact can be-

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  13. A liquid rises in a capillary tube when the angle of contact is:

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  14. When a capillary is dipped into a beaker full of water then water rise...

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  15. When liquid rises in a capillary tube, the upward pull due to surface ...

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  17. IF the diameter of a capillary tube is doubled, then the height of the...

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  18. IF the diameter of a capillary tube is doubled, then the height of the...

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